Finding the Third Proportional to 21,292 and 43,644

Step by Step Solution

1. Step 1: Write the proportion equation
   21,292 : 43,644 = 43,644 : x
2. Step 2: Convert to fraction form
   21,292/43,644 = 43,644/x
3. Step 3: Cross multiply
   21,292x = 43,644 × 43,644
4. Step 4: Simplify right side
   21,292x = 1,904,798,736
5. Step 5: Solve for x
   x = 1,904,798,736/21,292
6. Step 6: Final answer
   x = 89,460.77